Anatomy Of Dicotyledonous And Monocotyledonous Plants

The correct answer is: A = Endodermis; B = Conjunctive tissue; C = Protoxylem; D = Metaxylem; E = Phloem; F = Pith

In the T.S. of stele of dicot plants, the xylem and phloem are arranged in an X-shape. The parenchyma tissue present between xylem and phloem is called conjunctive tissue.

• Endodermis - These are cells seen in the T.S. of stele of a dicot root without any intercellular spaces.
• Conjunctive Tissue - It separates xylem from phloem.
• Protoxylem - In dicot plants, it is present away from the center.
• Metaxylem - It is situated towards the center.
• Phloem - In dicot roots, xylem and phloem are arranged radially i.e. they are present in different radii.
• Pith - At the center of the dicot roots, a small pith can be seen.

The correct answer is:

Option 1: Maize

Explanation:

Kranz anatomy is a specialized leaf structure found in plants that perform C4 photosynthesis, such as maize (corn), sorghum, and sugarcane.

In Kranz anatomy, the leaf has two distinct types of cells:

Bundle sheath cells: These cells are located around the vascular bundles and contain large amounts of chloroplasts for the Calvin cycle.

Mesophyll cells: These cells are located between the epidermis and bundle sheath and are involved in the initial fixation of carbon dioxide.

This adaptation helps C4 plants minimize photorespiration and efficiently fix carbon in hot, dry environments.

The other options (Tomato, Potato, Pea) are C3 plants and do not exhibit Kranz anatomy.

The stamen is the male reproductive organ of a flower, and it consists of two main parts: the filament and the anther. The filament is a slender, thread-like structure that supports the anther, which contains the pollen grains.

The filament serves to elevate the anther and position it in a way that facilitates the dispersal of pollen. It is the structure that connects the anther to the rest of the flower, allowing the anther to be positioned for effective pollination.

Therefore, the correct answer for the stalk of the stamen is (B) Filament.